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Video Solutions

Watch step-by-step video walkthroughs for DSA problems. Learn from expert explanations.

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1607. Sellers With No Sales

EasyDatabase
Watch Solutions54.4% acceptance

1608. Special Array With X Elements Greater Than or Equal X

EasyArrayBinary SearchSorting
Watch Solutions66.8% acceptance

1614. Maximum Nesting Depth of the Parentheses

EasyStackString
Watch Solutions84.8% acceptance

1623. All Valid Triplets That Can Represent a Country

EasyDatabase
Watch Solutions81.8% acceptance

1624. Largest Substring Between Two Equal Characters

EasyHash TableString
Watch Solutions68.5% acceptance

1629. Slowest Key

EasyArrayString
Watch Solutions59.7% acceptance

1633. Percentage of Users Attended a Contest

EasyDatabase
Watch Solutions58.6% acceptance

1636. Sort Array by Increasing Frequency

EasyArrayHash TableSorting
Watch Solutions80.8% acceptance

1637. Widest Vertical Area Between Two Points Containing No Points

EasyArraySorting
Watch Solutions87.3% acceptance

1640. Check Array Formation Through Concatenation

EasyArrayHash Table
Watch Solutions57.3% acceptance

1646. Get Maximum in Generated Array

EasyArraySimulation
Watch Solutions51.4% acceptance

1652. Defuse the Bomb

EasyArraySliding Window
Watch Solutions79.2% acceptance

1656. Design an Ordered Stream

EasyArrayData StreamDesign
Watch Solutions82.6% acceptance

1661. Average Time of Process per Machine

EasyDatabase
Watch Solutions68.7% acceptance

1667. Fix Names in a Table

EasyDatabase
Watch Solutions61.3% acceptance

1668. Maximum Repeating Substring

EasyDynamic ProgrammingStringString Matching
Watch Solutions41.9% acceptance

1672. Richest Customer Wealth

EasyArrayMatrix
Watch Solutions88.9% acceptance

1677. Product's Worth Over Invoices

EasyDatabase
Watch Solutions38.2% acceptance

1678. Goal Parser Interpretation

EasyString
Watch Solutions88.0% acceptance

1683. Invalid Tweets

EasyDatabase
Watch Solutions85.6% acceptance

1684. Count the Number of Consistent Strings

EasyArrayBit ManipulationCounting
Watch Solutions88.1% acceptance

1688. Count of Matches in Tournament

EasyMathSimulation
Watch Solutions86.4% acceptance

1693. Daily Leads and Partners

EasyDatabase
Watch Solutions86.6% acceptance

1694. Reformat Phone Number

EasyString
Watch Solutions67.7% acceptance

1700. Number of Students Unable to Eat Lunch

EasyArrayQueueSimulation
Watch Solutions79.5% acceptance

1704. Determine if String Halves Are Alike

EasyCountingString
Watch Solutions78.6% acceptance

1708. Largest Subarray Length K

EasyArrayGreedy
Watch Solutions65.7% acceptance

1716. Calculate Money in Leetcode Bank

EasyMath
Watch Solutions82.4% acceptance

1720. Decode XORed Array

EasyArrayBit Manipulation
Watch Solutions87.3% acceptance

1725. Number Of Rectangles That Can Form The Largest Square

EasyArray
Watch Solutions79.5% acceptance

1729. Find Followers Count

EasyDatabase
Watch Solutions69.3% acceptance

1731. The Number of Employees Which Report to Each Employee

EasyDatabase
Watch Solutions50.6% acceptance

1732. Find the Highest Altitude

EasyArrayPrefix Sum
Watch Solutions84.7% acceptance

1736. Latest Time by Replacing Hidden Digits

EasyGreedyString
Watch Solutions43.7% acceptance

1741. Find Total Time Spent by Each Employee

EasyDatabase
Watch Solutions86.9% acceptance

1742. Maximum Number of Balls in a Box

EasyCountingHash TableMath
Watch Solutions74.8% acceptance

1752. Check if Array Is Sorted and Rotated

EasyArray
Watch Solutions57.3% acceptance

1757. Recyclable and Low Fat Products

EasyDatabase
Watch Solutions89.3% acceptance

1758. Minimum Changes To Make Alternating Binary String

EasyString
Watch Solutions67.8% acceptance

1763. Longest Nice Substring

EasyBit ManipulationDivide and ConquerHash Table
Watch Solutions64.4% acceptance

1768. Merge Strings Alternately

EasyStringTwo Pointers
Watch Solutions82.1% acceptance

1773. Count Items Matching a Rule

EasyArrayString
Watch Solutions85.3% acceptance

1777. Product's Price for Each Store

EasyDatabase
Watch Solutions82.3% acceptance

1779. Find Nearest Point That Has the Same X or Y Coordinate

EasyArray
Watch Solutions69.9% acceptance

1784. Check if Binary String Has at Most One Segment of Ones

EasyString
Watch Solutions49.0% acceptance

1789. Primary Department for Each Employee

EasyDatabase
Watch Solutions68.1% acceptance
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Learn DSA with Video Solutions

Video solutions provide a visual, step-by-step approach to understanding Data Structures and Algorithms problems. Watching an expert walk through the thought process, from brute force to optimal solution, helps build the intuition needed for coding interviews.

How to Use Video Solutions Effectively

  • Try the problem first: Spend at least 20-30 minutes attempting the problem before watching the video
  • Pause and think: When the video mentions a key insight, pause and try to work through it yourself
  • Code along: After understanding the approach, implement the solution on your own
  • Review text solutions: Combine video walkthroughs with detailed text explanations for deeper understanding

Video Solutions by Difficulty

Start with Easy problems to build confidence and learn fundamental patterns. Progress to Medium problems where most interview questions fall. Hard problems help you prepare for the toughest interview rounds at top tech companies.